#main{
	width: 100%;
}

.subject-main{
	margin: 20px;
}


/* .tb-subject th,td{
	text-align: center!important;
} */

.page-main{
	float: right;
}




.div-title{
	margin-left: 20px;
	margin-right: 20px;
}

.title-subject{
	font-size: 18px;
	float: left;
}

.btn-tile{
	float: right;
	margin-left: 20px;
	margin-bottom: 20px;
}